Simulation of sound transmission through the porous material, determining the parameters of acoustic absorption and sound reduction

被引：3
作者：
Zvolensky, Peter [1 ]
Grencik, Juraj [1 ]
Kasiar, Lubomir [1 ]
Stuchly, Vladimir [1 ]
机构：
[1] Univ Zilina, Fac Mech Engn, Dept Transport & Handling Machines, Univ 8215-1, Zilina 01026, Slovakia
来源：
XXII SLOVAK-POLISH SCIENTIFIC CONFERENCE ON MACHINE MODELLING AND SIMULATIONS 2017 (MMS 2017) | 2018年 / 157卷
关键词：
simulation of noise transmission; noise of railway vehicles; TORTUOSITY;
D O I：
10.1051/matecconf/201815702058
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Currently, the quality of structural design of a railway coach is evaluated by so called acoustic comfort, which is characterized by achieved levels of internal noise. Therefore, acoustic parameters of car body are being developed purposely. The paper presents the results of the computer simulation of noise transmission through the wagon walls and the use of noise tests from the train running. The acoustic properties of the original and new materials in the care body are compared.
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页数：10
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